src/mgl/cursor.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        cursor.cpp
   3 // Purpose:
   4 // Author:      Vaclav Slavik
   5 // Id:          $Id$
   6 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "cursor.h"
  13 #endif
  14
  15 // For compilers that support precompilation, includes "wx.h".
  16 #include "wx/wxprec.h"
  17
  18 #ifdef __BORLANDC__
  19     #pragma hdrstop
  20 #endif
  21
  22 #include "wx/cursor.h"
  23 #include "wx/utils.h"
  24 #include "wx/log.h"
  25 #include "wx/intl.h"
  26
  27 #include "wx/mgl/private.h"
  28
  29
  30 //-----------------------------------------------------------------------------
  31 // wxCursor
  32 //-----------------------------------------------------------------------------
  33
  34 class wxCursorRefData: public wxObjectRefData
  35 {
  36   public:
  37
  38     wxCursorRefData();
  39     ~wxCursorRefData();
  40
  41     MGLCursor *m_cursor;
  42 };
  43
  44 wxCursorRefData::wxCursorRefData()
  45 {
  46     m_cursor = (MGLCursor*) NULL;
  47 }
  48
  49 wxCursorRefData::~wxCursorRefData()
  50 {
  51     delete m_cursor;
  52 }
  53
  54 //-----------------------------------------------------------------------------
  55
  56 #define M_CURSORDATA ((wxCursorRefData *)m_refData)
  57
  58 IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
  59
  60 wxCursor::wxCursor()
  61 {
  62 }
  63
  64 wxCursor::wxCursor(int cursorId)
  65 {
  66     const char *cursorname = NULL;
  67     m_refData = new wxCursorRefData();
  68
  69     switch (cursorId)
  70     {
  71         // FIXME_MGL -- what about storing these default cursors in executable
  72         //              as XPMs so that wxMGL binary wouldn't depend on
  73         //              tons of files in $MGL_ROOT/cursors? I don't know yet...
  74         case wxCURSOR_ARROW:           cursorname = "arrow.cur"; break;
  75         case wxCURSOR_BULLSEYE:        cursorname = "bullseye.cur"; break;
  76         case wxCURSOR_CHAR:            cursorname = "char.cur"; break;
  77         case wxCURSOR_CROSS:           cursorname = "cross.cur"; break;
  78         case wxCURSOR_HAND:            cursorname = "hand.cur"; break;
  79         case wxCURSOR_IBEAM:           cursorname = "ibeam.cur"; break;
  80         case wxCURSOR_LEFT_BUTTON:     cursorname = "leftbtn.cur"; break;
  81         case wxCURSOR_MAGNIFIER:       cursorname = "magnif1.cur"; break;
  82         case wxCURSOR_MIDDLE_BUTTON:   cursorname = "midbtn.cur"; break;
  83         case wxCURSOR_NO_ENTRY:        cursorname = "noentry.cur"; break;
  84         case wxCURSOR_PAINT_BRUSH:     cursorname = "pbrush.cur"; break;
  85         case wxCURSOR_PENCIL:          cursorname = "pencil.cur"; break;
  86         case wxCURSOR_POINT_LEFT:      cursorname = "pntleft.cur"; break;
  87         case wxCURSOR_POINT_RIGHT:     cursorname = "pntright.cur"; break;
  88         case wxCURSOR_QUESTION_ARROW:  cursorname = "query.cur"; break;
  89         case wxCURSOR_RIGHT_BUTTON:    cursorname = "rightbtn.cur"; break;
  90         case wxCURSOR_SIZENESW:        cursorname = "sizenesw.cur"; break;
  91         case wxCURSOR_SIZENS:          cursorname = "sizens.cur"; break;
  92         case wxCURSOR_SIZENWSE:        cursorname = "sizenwse.cur"; break;
  93         case wxCURSOR_SIZEWE:          cursorname = "sizewe.cur"; break;
  94         case wxCURSOR_SIZING:          cursorname = "size.cur"; break;
  95         case wxCURSOR_SPRAYCAN:        cursorname = "spraycan.cur"; break;
  96         case wxCURSOR_WAIT:            cursorname = "wait.cur"; break;
  97         case wxCURSOR_WATCH:           cursorname = "clock.cur"; break;
  98         case wxCURSOR_BLANK:           cursorname = "blank.cur"; break;
  99
 100         case wxCURSOR_NONE:
 101             *this = wxNullCursor;
 102             return;
 103             break;
 104
 105         default:
 106             wxFAIL_MSG(wxT("unsupported cursor type"));
 107             break;
 108     }
 109
 110     M_CURSORDATA->m_cursor = new MGLCursor(cursorname);
 111
 112     // if we cannot load arrow cursor, use MGL's default arrow cursor:
 113     if ( !M_CURSORDATA->m_cursor->valid() && cursorId == wxCURSOR_ARROW )
 114     {
 115         delete M_CURSORDATA->m_cursor;
 116         M_CURSORDATA->m_cursor = new MGLCursor(MGL_DEF_CURSOR);
 117     }
 118
 119     if ( !M_CURSORDATA->m_cursor->valid() )
 120     {
 121         wxLogError(_("Couldn't create cursor."));
 122         UnRef();
 123     }
 124 }
 125
 126 wxCursor::wxCursor(const char WXUNUSED(bits)[],
 127                    int WXUNUSED(width),
 128                    int WXUNUSED(height),
 129                    int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY),
 130                    const char WXUNUSED(maskBits)[],
 131                    wxColour * WXUNUSED(fg), wxColour * WXUNUSED(bg) )
 132 {
 133     //FIXME_MGL
 134 }
 135
 136 wxCursor::wxCursor(const wxString& cursor_file,
 137                    long flags,
 138                    int hotSpotX, int hotSpotY)
 139 {
 140     if ( flags == wxBITMAP_TYPE_CUR || flags == wxBITMAP_TYPE_CUR_RESOURCE )
 141     {
 142         m_refData = new wxCursorRefData();
 143         M_CURSORDATA->m_cursor = new MGLCursor(cursor_file.mb_str());
 144         if ( !M_CURSORDATA->m_cursor->valid() )
 145         {
 146             wxLogError(_("Couldn't create cursor."));
 147             UnRef();
 148         }
 149     }
 150     else
 151     {
 152         wxLogError(wxT("Cannot load cursor resource of this type."));
 153     }
 154 }
 155
 156 wxCursor::wxCursor(const wxCursor &cursor)
 157 {
 158     Ref(cursor);
 159 }
 160
 161 wxCursor::~wxCursor()
 162 {
 163     // wxObject unrefs data
 164 }
 165
 166 wxCursor& wxCursor::operator = (const wxCursor& cursor)
 167 {
 168     if ( *this == cursor )
 169         return (*this);
 170     Ref(cursor);
 171     return *this;
 172 }
 173
 174 bool wxCursor::operator == (const wxCursor& cursor) const
 175 {
 176     return (m_refData == cursor.m_refData);
 177 }
 178
 179 bool wxCursor::operator != (const wxCursor& cursor) const
 180 {
 181     return (m_refData != cursor.m_refData);
 182 }
 183
 184 bool wxCursor::Ok() const
 185 {
 186     return (m_refData != NULL);
 187 }
 188
 189 MGLCursor *wxCursor::GetMGLCursor() const
 190 {
 191     return M_CURSORDATA->m_cursor;
 192 }
 193
 194
 195
 196 // ----------------------------------------------------------------------------
 197 // Global cursor setting
 198 // ----------------------------------------------------------------------------
 199
 200 static wxCursor  g_globalCursor = wxNullCursor;
 201
 202 void wxSetCursor(const wxCursor& cursor)
 203 {
 204     if ( cursor.Ok() )
 205     {
 206         MGL_wmSetGlobalCursor(g_winMng, *cursor.GetMGLCursor());
 207         g_globalCursor = cursor;
 208     }
 209 }
 210
 211
 212
 213 //-----------------------------------------------------------------------------
 214 // busy cursor routines
 215 //-----------------------------------------------------------------------------
 216
 217 static wxCursor  gs_savedCursor = wxNullCursor;
 218 static int       gs_busyCount = 0;
 219
 220 const wxCursor &wxBusyCursor::GetStoredCursor()
 221 {
 222     return gs_savedCursor;
 223 }
 224
 225 const wxCursor wxBusyCursor::GetBusyCursor()
 226 {
 227     return wxCursor(wxCURSOR_WAIT);
 228 }
 229
 230 void wxEndBusyCursor()
 231 {
 232     if ( --gs_busyCount > 0 ) return;
 233
 234     wxSetCursor(gs_savedCursor);
 235     gs_savedCursor = wxNullCursor;
 236 }
 237
 238 void wxBeginBusyCursor(wxCursor *cursor)
 239 {
 240     if ( gs_busyCount++ > 0 ) return;
 241
 242     wxASSERT_MSG( !gs_savedCursor.Ok(),
 243                   wxT("forgot to call wxEndBusyCursor, will leak memory") );
 244
 245     gs_savedCursor = g_globalCursor;
 246     if ( cursor->Ok() )
 247         wxSetCursor(*cursor);
 248     else
 249         wxSetCursor(wxCursor(wxCURSOR_WAIT));
 250 }
 251
 252 bool wxIsBusy()
 253 {
 254     return (gs_busyCount > 0);
 255 }
 256